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tgm
Journeyman III

thread synchronization in kernel

Is there any way to synchronize (barrier) threads in a kernel?

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jfkong
Journeyman III

thread synchronization in kernel

You might want to lookup the IL document in CAL.

There is just one instruction that does for that purpose.

Fence for synchronization threads, and/or lds
Instructions FENCE

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thesquiff
Journeyman III

thread synchronization in kernel

How is this done from Brook+?

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gaurav_garg
Adept I

thread synchronization in kernel

Brook+ doesn't expose local data share, neither it allows reading from output scatter buffer, hence it need not to put synchronization barrier.

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